fix: ImageContentCloudFront.kt

- host, key-pair-id, key-file-path 참조 변경

src/main/kotlin/kr/co/vividnext/sodalive/aws/cloudfront/ImageContentCloudFront.kt

@@ -16,13 +16,13 @@ import java.util.Date
  */
 @Component
 class ImageContentCloudFront(
-    @Value("\${cloud.aws.cloud-front.host}")
+    @Value("\${cloud.aws.content-cloud-front.host}")
     private val cloudfrontDomain: String,
 
-    @Value("\${cloud.aws.cloud-front.private-key-file-path}")
+    @Value("\${cloud.aws.content-cloud-front.private-key-file-path}")
     private val privateKeyFilePath: String,
 
-    @Value("\${cloud.aws.cloud-front.key-pair-id}")
+    @Value("\${cloud.aws.content-cloud-front.key-pair-id}")
     private val keyPairId: String
 ) {
     fun generateSignedURL(